A question to a joseki of a game of Hajin Lee

[Nagilum]

$$B Corner
$$ ------------------
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . 4 1 . . 5 . .
$$ | . . . , . 6 . . .
$$ | . . . 2 . . . . .
$$ | . . . . . . . . .
$$ | . . 3 . . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .

Click Here To Show Diagram Code

[go]$$B Corner
$$ ------------------
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . 4 1 . . 5 . .
$$ | . . . , . 6 . . .
$$ | . . . 2 . . . . .
$$ | . . . . . . . . .
$$ | . . 3 . . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .[/go]

I saw the joseki in this game. (Look at 2:35)

I didn't found the joseki in Takaos basic joseki dictionary. Not basic anymore or just too new? Where can i find variations (also the bad ones) for this joseki? The result looks like a simple joseki. But the knight move looks very strange to me. Thanks for help.

[EdLee]

Hi Nagilum,

One database returns 136 pro games, from at least as late as 2009 ( Cho U, Kono Rin, Yamashita Keigo ).

[Uberdude]

The main idea of this knight's move is to try to make black inefficient: if he simply blocks then it becomes a good exchange if white continues with the butting move* and black descends because if the order were reversed Black would not block but extend sideways or push up. So Black will answer in a more efficient way.

* in fact white can hane in the corner too now but that's more complicated.

http://josekipedia.com/#path:qdodmcqcqgpf